Hole saw kits are essential for quickly creating clean, round openings in wood, plastic, drywall, PVC, and light metal. This guide highlights five versatile kits ideal for DIYers, hobbyists, and professionals who want reliable cutting performance without switching tools. Each listing includes its strongest use cases, notable trade-offs, and who should consider it. For quick planning, see the buying table below.
| Product | Size Range | Best For | Notes |
|---|---|---|---|
| HYCHIKA Bi-Metal 17 Pcs | 19–68 mm | Varied home projects, light metal and PVC | Includes mandrels and multiple sizes |
| EZARC 16Pcs Bi-Metal | 19–64 mm | Frequent cutting with tougher materials | 8% cobalt, fast eject slots |
| Diablo DHS14SGP | 5/8–2-3/8″ (mandrel system) | Projects needing deep cuts | Snap-Lock Plus compatibility |
| KATA 8Pcs | 25–54 mm | Soft woods, PVC, quick size changes | Case with mandrels |
| KATA 25Pcs | 19–152 mm | Wide range, DIY to light construction | Comprehensive set with wrenches |
HYCHIKA Bi-Metal Hole Saw Kit
This 17-piece HYCHIKA kit uses bi-metal blades with a 69–81 HRC cutting edge and 2 mm thickness. It’s designed for metal, PVC, and plastic board work, offering wear resistance and long life. The set includes 11 hole saw sizes up to 68 mm, two mandrels, drill bits, and a hex key for quick changes.
Best for: DIYers tackling metal and plastic projects where durability and multiple size options reduce tool swaps. The kit’s higher precision and chip-clearing groove support cleaner cuts.
Limitation: The depth is capped at about 40 mm, which may require multiple passes for thicker materials. The included components are adequate for typical home projects but not a pro-heavy workload.
EZARC 16Pcs Bi-Metal Hole Saw Kit
EZARC’s kit is built with M42 bi-metal and 8% cobalt, delivering faster cuts and longer life. It features all-access eject slots for rapid chip clearance and a 4/6 tooth pitch for balanced performance. With sizes from 19 mm to 64 mm, it covers common tasks in wood, plywood, plastic, and thin metal.
Best for: Users needing robust performance on tougher materials and faster progress through mid-range projects. The cobalt alloy helps maintain sharpness under heavier use.
Limitation: For very thick metal or hard wood, consider a larger or more specialized system; the kit’s depth remains shallow for deep through-cuts in dense materials.
Diablo DHS14SGP General Purpose Set
Diablo’s kit emphasizes deep cuts with a 2-3/8″ depth and universal mandrel compatibility across sizes 5/8″ to 6″. It supports quick changes via the Snap-Lock Plus system and reduces downtime by enabling easy switching between sizes.
Best for: Professionals and serious DIYers needing deeper holes and a flexible mandrel system that works across many Diablo sizes. It’s especially useful when frequent size changes are expected.
Limitation: The included components are designed for specific Diablo sizes; check compatibility if you use non-Diablo mandrels or adapters in mixed-tool setups.
KATA 8Pcs Hole Saw Kit
KATA’s 8-piece set covers 25–54 mm with heat-treated carbon steel and black rust-resistant coating. It’s designed for soft wood and PVC board, offering a fast, clean cut with a protective case and mandrels for easy setup.
Best for: Home DIYers focusing on wood and PVC projects who value quick size changes and a compact starter kit.
Limitation: Not recommended for metal or hard woods; avoid using it on dense materials to prevent premature wear.
KATA 25Pcs Hole Saw Kit
This comprehensive set spans from 19 mm to 152 mm with 25 pieces, including two mandrels and three drill bits. The blades feature hot-formed carbon steel with a rust-resistant coating for sharper cuts and longer life. A wrench is included to simplify tightening.
Best for: Versatile hands-on projects where a wide range of hole sizes is needed in wood, soft plastic, and light construction tasks. The included installation plate and wrenches support safer, faster changes.
Limitation: Heavier and bulkier than smaller kits; storage and transport require more space and organization.
Buying Guide
What material will you drill most often? Different blades excel on wood, plastic, drywall, PVC, and metal. If you work across metals and plastics, prioritize bi-metal blades with cobalt or higher hardness, like the EZARC kit.
What hole sizes do you use frequently? If you encounter many diameters, choose a kit with broad size coverage or a dedicated range for the common sizes you need, such as 19–64 mm for general tasks or up to 152 mm for larger openings.
Is depth a concern? For deeper holes, look for sets that advertise deeper cutting depth or compatible mandrels that support longer through-cuts without multiple passes, like Diablo’s system.
How important is ease of blade change? Snapping or quick-change mandrel systems save time on multi-size jobs and reduce downtime on the job site.
What about accessories? Mandrels, hex keys, and installation plates improve setup speed and safety. Store kits in a sturdy case to keep blades sharp and organized.
Durability and finish matter. For frequent use on metal or hard materials, select cobalt-infused or high-contrast carbide-like blades, and avoid inferior coatings that corrode quickly.
Frequently Asked Questions
- What is a bi-metal hole saw kit? A bi-metal kit uses two metals for the blade, combining toughness and flexibility for longer life and cleaner cuts across different materials.
- Do hole saws drill faster with cobalt? Cobalt-infused blades cut tougher materials more quickly and resist wear better than standard carbon steel blades.
- Can I use any mandrel with any hole saw? Mandrel compatibility varies by brand and size. Confirm universal vs. brand-specific mandrels before mixing tools.
- How deep can hole saws cut? Most standard hole saws cut up to about 1 inch or 40 mm; some deep-cut designs offer greater depths or use longer mandrels.
- What should I avoid with these kits? Avoid using dull blades on hard materials; dull blades increase heat and reduce cut quality and blade life.
- Which kit is best for a beginner? A balanced set like HYCHIKA or KATA with multiple sizes and a protective case helps new users learn tool handling and cut variety safely.